Constraints on massive black holes as dark matter candidates

Details Constraints on massive black holes as dark matter candidates Constraints on massive black holes as dark matter candidates

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.259p..27h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 259, no. 3, p. 27P-30P.

Astronomy and Astrophysics

Astronomy

38

Black Holes (Astronomy), Dark Matter, Galactic Halos, Galactic Nuclei, Galactic Evolution, Galactic Mass

Scientific paper

If our Galactic halo were composed of black holes as massive as 10 exp 6 solar masses, then dynamical friction would have caused about 100 such objects to settle toward the Galactic Center. Several processes can then ensue: slingshot effects, gravitational radiation induced coalescence, and possible 'loss cone' depletion of stars orbiting very close to the Galactic Center. The most likely outcome would be the accumulation of a central mass of much greater than 10 exp 6 solar masses, much larger than is compatible with observations. These considerations strongly argue against the hypothesis that the halo is made of 10 exp 6-solar mass hole.

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